A double explosion, in which a dying star split, then recombined, may be a long-hypothesized but never-before-seen "superkilonova." ...

Astronomers say they may have caught the universe pulling off a rare double feature: a stellar blast that appears to be both a supernova (the explosion of a star) and a kilonova (usually the collision ...

A massive star may have burst, leaving behind two dense, dead cores, which then collided and caused another explosion ...

One such superkilonova candidate event, named AT2025ulz, was observed in 2025; LIGO and Virgo first spotted gravitational ...

NASA’s Hubble Space Telescope captured asteroids crashing into one another in a nearby planetary system around a star some 25 ...

A research team led by Caltech may have just discovered the first-ever superkilonova, a cosmic phenomenon in which a star ...

The cosmos has delivered a rare kind of fireworks display, and astronomers are racing to understand what it means. A strange double flash from a distant galaxy appears to show two neutron stars ...

A mysterious cosmic explosion linked to gravitational waves may reveal a previously unknown type of supernova event - a ...

Astronomers report a strange cosmic blast that looked like a kilonova, then behaved like a supernova, hinting at a possible first “superkilonova” and leaving scientists debating how stars truly die.

Learn about what may be the first ever superkilonova ever observed, emitting gravitational waves that hint at the collision ...

NASA's Nancy Grace Roman Space Telescope team has released detailed plans for a major survey that will reveal our home galaxy ...

JWST spots a mature early-universe spiral as CERN reveals how light nuclei form in extreme collisions, challenging core ...